needle valve

A needle valve is a type of industrial valve that has a small conical piston or needle inside.
It is designed to control the flow of a fluid, usually liquids or gases, by precisely adjusting the opening or closing of a valve.

Needle valves work by moving a needle into or out of the valve seat, which is a small opening through which fluid flows.

The conical shape of the needle provides precise control over the flow rate and allows for fine adjustment of the flow.

Needle valves are commonly used in various industries and applications where precise flow control is required, such as laboratory equipment, hydraulic systems, and gas control processes.

Types of needle valve (needle valve)

1. Direct needle valve:

This is the most common type of needle valve that consists of an inlet and a direct outlet for fluid flow.

It has a needle-shaped piston that controls the flow rate by adjusting the position of the piston relative to the orifice.

2. Angled needle valve:

Similar to the straight needle valve, the angled needle valve has an angled inlet and outlet.

This type is commonly used in applications where space is limited or where a right angle connection is required.

3. Globe needle valve:

The globe needle valve has a body in the shape of a sphere, the inlet and outlet of which are located on opposite sides.

This type is usually used for precise control and containment of fluid flow.

4. Multi-port needle valve:

A multi-port needle valve is designed with multiple inlets and outlets that allow for regulation and diversion of fluid flow in different directions.

Often used in complex fluid systems or applications that require multiple flow paths.

5. Measuring needle valve:

The metering needle valve is specifically designed for fine-tuning the flow rate, which is often used in instruments or analytical systems that require precise control and measurement.

6. High pressure needle valve:
As the name suggests, a high pressure needle valve is designed to withstand and control high pressure fluids.

It is constructed with durable materials and sealing mechanisms to ensure safety and reliability in high pressure applications.

7. Back pressure needle valve:
A back pressure needle valve is used to maintain the desired pressure in a system by controlling the flow rate of the fluid upstream and preventing overpressure.

8. Micro needle valve:

A micro needle valve is a small valve designed to control very small flow rates.

It is often used in microfluidic systems, laboratory equipment, or applications that require precise control in miniature environments.

9. Flush needle valve:

The flush needle valve is designed to provide a smooth flow path without any internal blockages or dead space.

It is usually used in applications where cleanliness or sterility is essential, such as the pharmaceutical or food industries.

10. Cryogenic needle valve:

A cryogenic needle valve is designed to withstand very low temperatures, typically below -150°C (-238°F).

Often used in cryogenic applications, such as handling liquefied gases or in cryogenic research facilities.

Use of needle valves

Needle valves are commonly used in various applications where precise control of flow and pressure is required. Some of the common uses of needle valve are:

Gas and fluid control:

Needle valves are often used in industries such as oil and gas, pharmaceutical, chemical, and process control, where precise control of gas or fluid flow is essential.

These valves enable operators to precisely adjust flow rates and pressures, making them suitable for applications where precise adjustments are required.
تجهیزات آزمایشگاهی و علمی:

Needle valves are widely used in laboratories and scientific equipment where precise control of fluid flow is required.

These valves are commonly used in gas chromatography, mass spectrometry and other analytical instruments to regulate the flow of gases or liquids.

Heat exchangers:

Needle valves are often used in heat exchangers to control fluid flow between different heat exchange circuits.

They help maintain the optimum temperature and pressure in the heat exchanger, ensuring efficient operation and preventing damage.

Hydraulic and pneumatic systems:

Needle valves are used in hydraulic and pneumatic systems to regulate the flow of fluids or gases.

These valves enable operators to control the speed and force of hydraulic or pneumatic actuators by adjusting flow and pressure.

Pressure reduction systems:

Needle valves are also used in pressure relief systems to control the release of excess pressure in a system.
By adjusting the needle valve, the operator can precisely adjust the pressure at which the valve begins to open, preventing system damage or overpressure conditions.

In general, needle valves are used wherever precise control of flow rate and pressure is critical, making them indispensable components in various industries and systems.

Chemical and petrochemical industries:

Needle valves are of particular importance in submitting, discharging and controlling chemicals.

Water and sewage systems:

In urban or industrial water and wastewater flow control, needle valves are used to optimize performance and reduce liquid wastage.

Air and gas processing industries (ventilation systems):

In ventilation and refrigeration systems, needle valves help to accurately control the flow of air or gases to increase efficiency and reduce costs.

Since needle valves are used in different industries and have different configurations, the right choice based on the specific needs of each industry is vital.

Features of Needle Valve

1 Accuracy in control:

Needle valves allow precise control of liquid flow due to their precise structure and thin needle located inside the tube.

2 resistant structure:

Many needle valves use resistant materials such as steel, which protects them against pressures and harsh environmental conditions.

3 settings:

These valves allow the user to adjust the flow so that they can easily transfer a precise amount of liquid or gas.
Needle valve price
The price of needle valves varies and depends on several factors, including size and dimensions, construction materials, brand, standards, and type of use. Also, the market and geographical area also affect the price of needle valves.

In the following, we examine the factors that affect the price of needle valves:

Size and dimensions:

Needle valves are available in the market with different sizes and dimensions. Larger valves with special dimensions may have a higher price.

Construction materials:

The type of material used to make the needle valve also affects the price. Valves made of quality and durable materials are usually more expensive.

Connection type:

Different types of fittings may also affect the price of a needle valve. Flanged connections or tabular connections may be more expensive.

Settings and features:

Specific features such as fine tuning, needle type, and other tuning features can also affect the price.

Needle Velo price

Brand:

The brand and manufacturer also play an important role in determining the price. Milking machines produced by famous and reputable brands may cost more.

Standards:

The use of different standards and certificates may affect the price. Valves that meet international standards are usually more expensive.

In general, to know the exact price of needle valve, it is suggested to contact our consultants and from them comprehensive information about Get technical specifications and prices.
Buy needle valve
To buy needle valve, you can follow the following steps:

Determining your needs:

Determine what application you need the needle valve for. Determine the dimensions, construction materials, connection type, and exact features you want the valve to have.

Research on brands and manufacturers:

It is important to research different brands and manufacturers of needle valves. Reliable and experienced brands provide more assurance of the quality of their products.

. Certificates and standards

Make sure the needle valves meet the standards required by your industry and have the necessary certifications.

Support and after-sales service

It is recommended that you research the supplier’s after-sales service and support. This can be useful in case of future problems.
checking comments and feedback

Customer reviews and their feedback on their shopping experiences can help you make a better choice.

trial and test

After you receive the needle valve, try and test it to make sure it meets your expectations.

By doing the above steps, you can find the right needle valve for your needs and make a purchase.

Contact our experts at Kiasanaat for further guidance.